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NEET UG BIOLOGY MCQ: STRUCTURAL ORGANISATION IN ANIMALS
1
Hard
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Understanding
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Consider the following statements about the hind wings of cockroach
I. These are broad and thin
II. They are not used in flying
III. They are also known as mesothoracic wings
IV. They are transparent and delicate
Which of the statements given above is/are incorrect?
I. These are broad and thin
II. They are not used in flying
III. They are also known as mesothoracic wings
IV. They are transparent and delicate
Which of the statements given above is/are incorrect?
View answer and explanation
Correct option: B
II and III
Option B (II and III) is correct because the hind wings are used for flying and are metathoracic wings, not mesothoracic.
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i) Cardiac fibres are branched with one or more nuclei.
ii) Smooth muscles are unbranched and cylindrical.
iii) Striated muscles can be branched or unbranched.
iv) Involuntary muscles are non-striated. The ciliated columnar epithelial cells in humans are known to occur in The outermost wall of spermatophore of cockroach is composed of the secretions of